To upload an mp3 file to your website just simply go and edit your website and click on the option "SITE EDITOR MENU" and click on "ADD/CHANGE MP3".
All iTunes and Amazon files and many other music site files are either m4a or MPEG-4 files; these files have a DRM attached to them (Digital Rights Management); this is put in place by record companies so that these files can’t be duplicated and resold/redistributed. It is illegal for businesses to break these DRMs, so I can’t technically help you with this, but there is a way for you to (legally) take care of it on your end.
If you have a PC:
- Click Preferences
- Click the Advanced tab
- Click Importing tab inside the Advanced tab
- Change "Import Using" to say "Import Using MP3 encoder"
- Click OK
- Now, insert the CD you want to import and click Import (the import button is probably at the bottom right hand portion of iTunes)
- The files created should be MP3s. You can tell by right clicking on the file in iTunes and selecting Get Info
If you have a Mac:
- Create a playlist with just your file in it
- File > Burn playlist to disc
- Check the box that says MP3 CD
- Burn the file to a blank disc
- Upload the file from the disc to your WedSite
I hope this helps, and let me know if there’s anything else I can do for you!